Coven-Wood lectures at Wesleyan

Robert Ghrist will give the Coven-Wood Lectures at Wesleyan University this year ( They will take place on Wednesday 4/25 and Thursday 4/26. The abstracts are below.

“Homological Tools for Data” (Wednesday)

Abstract: The past fifteen years has witnessed a dramatic burst of applications of topological thinking and theorems in the applied sciences, ranging from statistics to sensor networks, neuroscience, and more, to be surveyed here. Several challenges remain, including: (1) how to compute topological quantities efficiently; (2) how to extend the set of current applications and methods; and, perhaps most importantly, (3) how to educate end-users in the meaning and proper use of homological tools.
This talk will demonstrate why homology is one of the most exciting new tools in applied mathematics.


“New Uses for Sheaf Theory” (Thursday)

Abstract: As ideas from algebraic topology diffuse over into applied domains, we see a recapitulation of the subject’s genesis. First, the use of Betti numbers; next, functoriality (cf. persistent homology); then, categorification (current work on stability and interleaving in topological data analysis).
What next?  This talk will argue that sheaves and sheaf theory are a good candidate for the next toolbox for applied data science. The talk will give a gentle overview of this (intimidating) subject and provide details of a new class of sheaves useful in inference problems associated with sensor networks.

Final Ghrist poster

TAGS – linking Topology and Algebraic Geometry to probability and Statistics

We are happy to announce an upcoming workshop: TAGS – linking Topology and Algebraic Geometry to probability and Statistics. It will take place on February 19-23 at the Max Planck Institute for Mathematics in the Sciences in Leipzig.

The workshop will bring together researchers in topological data analysis, applied algebraic geometry, statistics, and related fields. There will be a number of introductory talks on each of these topics, with the aim of attracting participants who are not necessarily experts in these fields. We will provide a platform for discussing areas of common interest, methodologies extending between fields, and currently open problems.

Travel funding and accommodation can be provided for early-career participants such as postdoctoral researchers and PhD students. Applicants are expected to write a short letter of motivation and to kindly agree to present their work in the form of a poster. PhD students will further be asked to provide a letter of recommendation from their supervisors. The deadline for funding applications is December 1, 2017.

Click here to register.